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authorVincent Ambo <tazjin@google.com>2020-05-17T14·52+0100
committerVincent Ambo <tazjin@google.com>2020-05-17T14·52+0100
commit7994fd1d545cc5c876d6f21db7ddf9185d23dad6 (patch)
tree32dd695785378c5b9c8be97fc583e9dfc62cb105 /third_party/nix/tests/function-trace.sh
parentcf8cd640c1adf74a3706efbcb0ea4625da106fb2 (diff)
parent90b3b31dc27f31e9b11653a636025d29ddb087a3 (diff)
Add 'third_party/nix/' from commit 'be66c7a6b24e3c3c6157fd37b86c7203d14acf10' r/724
git-subtree-dir: third_party/nix
git-subtree-mainline: cf8cd640c1adf74a3706efbcb0ea4625da106fb2
git-subtree-split: be66c7a6b24e3c3c6157fd37b86c7203d14acf10
Diffstat (limited to 'third_party/nix/tests/function-trace.sh')
-rwxr-xr-xthird_party/nix/tests/function-trace.sh85
1 files changed, 85 insertions, 0 deletions
diff --git a/third_party/nix/tests/function-trace.sh b/third_party/nix/tests/function-trace.sh
new file mode 100755
index 000000000000..182a4d5c287a
--- /dev/null
+++ b/third_party/nix/tests/function-trace.sh
@@ -0,0 +1,85 @@
+source common.sh
+
+set +x
+
+expect_trace() {
+    expr="$1"
+    expect="$2"
+    actual=$(
+        nix-instantiate \
+            --trace-function-calls \
+            --expr "$expr" 2>&1 \
+            | grep "function-trace" \
+            | sed -e 's/ [0-9]*$//'
+    );
+
+    echo -n "Tracing expression '$expr'"
+    set +e
+    msg=$(diff -swB \
+               <(echo "$expect") \
+               <(echo "$actual")
+    );
+    result=$?
+    set -e
+    if [ $result -eq 0 ]; then
+        echo " ok."
+    else
+        echo " failed. difference:"
+        echo "$msg"
+        return $result
+    fi
+}
+
+# failure inside a tryEval
+expect_trace 'builtins.tryEval (throw "example")' "
+function-trace entered undefined position at
+function-trace exited undefined position at
+function-trace entered (string):1:1 at
+function-trace entered (string):1:19 at
+function-trace exited (string):1:19 at
+function-trace exited (string):1:1 at
+"
+
+# Missing argument to a formal function
+expect_trace '({ x }: x) { }' "
+function-trace entered undefined position at
+function-trace exited undefined position at
+function-trace entered (string):1:1 at
+function-trace exited (string):1:1 at
+"
+
+# Too many arguments to a formal function
+expect_trace '({ x }: x) { x = "x"; y = "y"; }' "
+function-trace entered undefined position at
+function-trace exited undefined position at
+function-trace entered (string):1:1 at
+function-trace exited (string):1:1 at
+"
+
+# Not enough arguments to a lambda
+expect_trace '(x: y: x + y) 1' "
+function-trace entered undefined position at
+function-trace exited undefined position at
+function-trace entered (string):1:1 at
+function-trace exited (string):1:1 at
+"
+
+# Too many arguments to a lambda
+expect_trace '(x: x) 1 2' "
+function-trace entered undefined position at
+function-trace exited undefined position at
+function-trace entered (string):1:1 at
+function-trace exited (string):1:1 at
+function-trace entered (string):1:1 at
+function-trace exited (string):1:1 at
+"
+
+# Not a function
+expect_trace '1 2' "
+function-trace entered undefined position at
+function-trace exited undefined position at
+function-trace entered (string):1:1 at
+function-trace exited (string):1:1 at
+"
+
+set -e